Fix run-consul messaging for '--ca-path' flag

[acaloiaro]

Description

The documentation message for run-consul's --enable-rpc-encryption flag refers to a non-existing --ca-file-path. The intention was to reference --ca-file.

TODOs

Please ensure all of these TODOs are completed before asking for a review.

• [x] Ensure the branch is named correctly with the issue number. e.g: feature/new-vpc-endpoints-955 or bug/missing-count-param-434.
• [ ] Update the docs.
• [x] Keep the changes backward compatible where possible.
• [ ] Run the pre-commit checks successfully.
• [ ] Run the relevant tests successfully.
• [ ] Ensure any 3rd party code adheres with our license policy or delete this line if its not applicable.

Related Issues

[hashicorp-cla]

All committers have signed the CLA.

[acaloiaro]

FYI @robmorgan I just spotted this PR in my open PR list.